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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

RAMIREZ, Luis Miguel  and  BALLESTEROS, Luis Ernesto. Anthropometry of the Incus and Incudomalleolar and Incudostapedial Joints in Humans: A Direct Anatomical Study. Int. J. Morphol. [online]. 2013, vol.31, n.2, pp.539-545. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022013000200030.

Current studies on anatomical variations of the incus in humans from the morphometric register are insufficient. Structural and dimensional characteristics of the incus are registered in 23 samples of Colombian adult mestizo population. Registered measures involved incus body, incudo-maleolar joint, long process, short process and incudo-stapedial joint. Only eight of the thirty-five records taken in this study could be thoroughly compared to other anterior studies, which showed similarities. The total length of the anvil was 6,51 mm (SD 0.32), the length of the long process of the incus was 5.35 mm (SD 0.25), the distance between processes long and short was 6.06 mm (SD 0.35) and the ratio of lengths between both processes was 82.18% (SD 8.9%). In accordance with the studied population we found paired variation in the anatomy of the incus in only three of the records taken, however, we believe that it is a uniform and morphometrically stable bone.

Keywords : Oscicles; Incus; Incudo-malleolar joint; Long process; Short process; Incudo-stapedial joint.

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